Is vibroblade chainsawsword possible, and how would it work.

I mean specifically how vibroblade works, since i think everyone knows how chainsaw works (unless there are tyoes i dont remember a type of saw that wlild combine woth vibroblade better than chainsaw)

I mean why not, why not make chainsaw vibrate at ultrasonic speed, I dont know if its possible or practical in physics but why it never appeared in science fiction? You have a chainsaw and just need to make it vibrate.